Elastic belt chair rest part

ABSTRACT

This invention relates to an elastic belt chair rest part realized by an elastic belt chair consisting of or comprising the surrounding frame and the backed seat. The backed seat includes a seat and a back. The seat is made of the same material for the surrounding. It is characterized in that the back is woven by tensioned elastic belts, and the two belts ends are respectively fixed to the surrounding frame and seat. This brings a novel and unique shape, and more substantial and comfortable fit and feeling. The sitter will feel no deformation and reduced tension in the hip area. The back can be forcefully supported by the elastic belts woven in a Z shape. Additionally, the belts can be made from colorful and foldable elastic belts with the surrounding frames in different colors.

BACKGROUND OF THE INVENTION

1. FIELD OF THE INVENTION

This invention relates to a spring belt chair rest part, and isespecially related to a chair rest with an elastic back made of radiallytensioned elastic belts.

2. DESCRIPTION OF THE PRIOR ART

Elastic chair rests have become popular in recent years because of theirsimple structure and their unique shape. They are often used as leisurechairs. CN203000054U has introduced an elastic rope chair rest part, themain body of which consists of a surrounding frame and a backed seat.The backed seat further consists of a seat and a back. The back is madeof crossed elastic ropes, and the rest part is tensioned into a planarstructure when there is no load on it. The chair rest part was novel andunique shape, and it was reformed from the previous oxford cloth restpart in the past, and the user will feel funny and resilience. Theelastic rope diameter is small, and hips may be sharply/painfullypressed into the ropes. The ropes also have to be weaved in acomplicated way. Therefore, manufacturers are searching for a new methodto improve the traditional elastic rope chair, which becomes a targetfor this invention.

None of the above inventions and patents, taken either singly or incombination, is seen to describe the instant invention as claimed.

SUMMARY OF THE INVENTION

This invention shows in at least one embodiment a backed seat for achair rest part which is woven by elastic belts.

This invention is realized by an elastic belt chair rest part consistingof a surrounding frame and a seat having a back (“backed seat”). Thebacked seat consists of a seat and a back. The seat is made of the samematerial as the surrounding. It is characterized in that the back isweaved by tensioned elastic belts, and the two belts ends arerespectively fixed to the surrounding frame and seat.

The surrounding frame is a circle, the seat back side is a circularedge, and one end of elastic belt is radially fixed to the circularedge.

The surrounding frame is a circle. The seat back side is a circularedge. One end of the elastic belt is fixed to the circular edge. Themultiple elastic belts are uniformly distributed and are parallel.

The elastic belts are uniformly arranged and are fixed to the circularedge of the seat at one end, and the point at which the belts wouldcross, if extended is on the central line of the chair rest part. Thatis, the belts “fan out” from a central line of the chair rest.

In a further embodiment, the radial elastic belts are divided into twogroups. Intersection (“cross”) points of the extending lines from thetwo groups are distributed at both sides of the chair rest part centralline. That is, one set of belts points to one side of the chair rest,and the other set of belts points to another side of the chair rest. Thetwo groups of belts are overlapped with each other, over and under.

The upper part of the back is tensioned by a Z shaped elastic rope. Thetwo rope ends are separately fixed to the surrounding frame, and theelastic rope is at the back of elastic belts.

The surrounding frame is preferably a circle or a square with an innercircle.

This invention inherits the funny and elastic structure, and furtherbrings a novel and unique shape to provide a more substantial andcomfortable fit and feel. This is especially true when the seat is madeof common fabric, where the sitter will feel no deformation of thematerial and the hips will not thus be tensioned or pressed, and theback can be strongly supported by the elastic belts weaved in a Z shape.Moreover, the people's demand for a more diversified lifestyle can besatisfied by colorful and foldable elastic belts and with thesurrounding frames in differing colors.

These and other objects of the present invention will be readilyapparent upon review of the following detailed description of theinvention and the accompanying drawings. These objects of the presentinvention are not exhaustive and are not to be construed as limiting thescope of the claimed invention. Further, it must be understood that noone embodiment of the present invention need include all of theaforementioned objects of the present invention. Rather, a givenembodiment may include one or none of the aforementioned objects.Accordingly, these objects are not to be used to limit the scope of theclaims of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

This invention is further explained by the attached drawings as below:

FIG. 1 is a 3D schematic drawing for the circular foldable chair.

FIG. 2 is a schematic drawing for a circular chair rest part.

FIG. 3 is a schematic drawing for another circular chair rest part.

FIG. 4 is a schematic drawing for a square chair rest part.

In which, the following reference numerals are associated with thefollowing elements:

-   1—Foldable support-   11—Support-   2. Chair rest part-   21—Surrounding frame-   22—Seat-   23—Back-   24—Elastic belts-   25—Elastic rope

Similar reference characters denote corresponding features consistentlythroughout the attached drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT(S)

The circular foldable chair in FIG. 1 and FIG. 2 consists of a foldablesupport 1 and the chair rest part 2. The foldable support 1 contains asupport 11 suspending or fixing the chair rest part 2. In this preferredembodiment, the support 11 is a circle. The chair rest part contains asurrounding frame 1 and a backed seat on the support 11. The backed seatcontains a seat 22 and a back 23. The seat 22 is made of the samematerial for the surrounding frame 21, such as oxford cloth. The back 23is weaved by a tensioned elastic belt 24. The two ends of the elasticbelt 24 are respectively fixed to the surrounding frame 21 and the seat22.

In the figure, the surrounding frame 21 is a circle with an inner circleand an outer circle. The seat 22 has a circular edge at the side towardsthe back 23. The elastic belt 24 is radially weaved to the circular edgeof the seat 22. More particularly, elastic belts 24 are uniformlyarranged and fixed to the circular edge of seat 22 at one end, and thecrossing (“intersection”) point of the belts 24, if extended, is at thecentral line on the chair rest part 2, i.e., they are integrallysymmetrical at both sides of the chair rest part central line and fanout symmetrically.

In FIG. 2, a Z shaped elastic rope 25 is tensioned at the back 23 toreinforce the supporting strength of the upper part of the back 23. Thetwo ends of the elastic rope 25 are separately fixed to the surroundingframe 21. The elastic rope 25 is at the back of (“behind”) the elasticbelt 24 to improve the supporting force of the upper part, and thesymmetrical chair rest part is provided with a varying shape.

In FIG. 3, the chair rest part 2 can be made by overlapped, radialelastic belts 24. The radial elastic belts 24 are divided into twogroups, where the crossing points of extended lines from the two groupsof elastic belts 24 are distributed at both sides of the chair rest part2 central line. That is one set of belts points to one side of the chairrest, and the other set of belts points to the other side of the chair.The two groups of belts 24 are overlapped with each other up and down(“over and under”).

In FIG. 4, the surrounding 21 is a square shape with an inner circlematched to a foldable chair with a square chair rest part. The seat 22has a circular edge at the side towards the back 23. One end of theelastic belt 24 is woven to the circular edge of the seat 22. Multipleelastic belts 24 are uniformly distributed in parallel. And to improvethe stiff symmetrical shape, a Z-shaped elastic rope 25 is tensioned tothe upper part of the back 23 to reinforce the back support and beautifythe shape.

In all, the figures introduce three different chair rest parts. Andespecially the weaved structure of elastic belt 24 is applicable forboth a circular chair rest part and for a square chair rest part. The“weave” mentioned in this invention has two meanings, one is thatmultiple elastic belts are set between the seat and the surroundingframe into a back; and the other is that multiple elastic belts arewoven in a designed pattern, and overlapped up and down (“over andunder”) into a back. Furthermore, the elastic belts are tensioned, butnot excessively tensioned, so that it provides an elastic deformationunder sitting loads. The “radial” mentioned is similar with“radialized.”

While this invention has been described as having a preferred design, itis understood that it is capable of further modifications, uses and/oradaptations of the invention following in general the principle of theinvention and including such departures from the present disclosure ascome within the known or customary practice in the art to which theinvention pertains and as maybe applied to the central featureshereinbefore set forth, and fall within the scope of the invention andthe limits of the appended claims. It is therefore to be understood thatthe present invention is not limited to the sole embodiment describedabove, but encompasses any and all embodiments within the scope of thefollowing claims.

I claim:
 1. An elastic belt chair consisting of a surrounding frame anda backed seat, the backed seat consists of a seat and a back, and theseat is made of the same material for the surrounding; it ischaracterized in that the back is weaved by tensioned elastic belts, andthe two belts ends are respectively fixed to the surrounding frame andseat.
 2. The elastic chair rest part mentioned in claim 1, characterizedin that the surrounding frame is a circle, the seat back side is acircular edge, and one end of elastic belt is radially fixed to thecircular edge.
 3. The elastic chair rest part mentioned in claim 1,characterized in that the surrounding frame is a circle, the seat backside is a circular edge, one end of the elastic belt is radially fixedto the circular edge, and multiple elastic belts are uniformlydistributed in parallel.
 4. The elastic chair rest part mentioned inclaim 2, characterized in that elastic belts are uniformly arranged andfixed to the circular edge of seat at one end, and the cross point ofextending lines for elastic belts is at the central axis on the chair.5. The elastic chair rest part mentioned in claim 2, characterized inthat the radial elastic belts are divided into two groups, cross pointsof extending lines from the two groups are distributed at both sides ofthe chair central line, and the two groups of belts are overlapped witheach other up and down.
 6. The elastic chair rest of claim 1, whereinthe upper part of back is tensioned by a Z elastic rope, the two ropeends are separately fixed to the surrounding frame, and the elastic ropeis at the back of elastic belts.
 7. The elastic chair rest of claim 1,wherein the surrounding frame is a circle.
 8. The elastic chair rest ofclaim 1, wherein the surrounding frame is a square with an inner circle.9. An elastic belt chair comprising: a surrounding frame and a backedseat, the backed seat consists of a seat and a back, and the seat ismade of the same material for the surrounding; it is characterized inthat the back is weaved by tensioned elastic belts, and the two beltsends are respectively fixed to the surrounding frame and seat.
 10. Theelastic chair rest part mentioned in claim 9, characterized in that thesurrounding frame is a circle, the seat back side is a circular edge,and one end of elastic belt is radially fixed to the circular edge. 11.The elastic chair rest part mentioned in claim 9, characterized in thatthe surrounding frame is a circle, the seat back side is a circularedge, one end of the elastic belt is radially fixed to the circularedge, and multiple elastic belts are uniformly distributed in parallel.12. The elastic chair rest part mentioned in claim 10, characterized inthat elastic belts are uniformly arranged and fixed to the circular edgeof seat at one end, and the cross point of extending lines for elasticbelts is at the central axis on the chair.
 13. The elastic chair restpart mentioned in claim 10, characterized in that the radial elasticbelts are divided into two groups, cross points of extending lines fromthe two groups are distributed at both sides of the chair central line,and the two groups of belts are overlapped with each other up and down.14. The elastic chair rest of claim 9, wherein the upper part of back istensioned by a Z elastic rope, the two rope ends are separately fixed tothe surrounding frame, and the elastic rope is at the back of elasticbelts.
 15. The elastic chair rest of claim 9, wherein the surroundingframe is a circle.
 16. The elastic chair rest of claim 9, wherein thesurrounding frame is a square with an inner circle.